The IUPAC name of the compound given below is- CH3CH2COCH2CH3 a)1-pentanone b)2-pentanone c)2-carboxybutane d)3-pentanone please give a reason.

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The IUPAC name of this compound is (d) 3-pentanone. How? According to the rules first we will select the longest carbon chain, which is 5 carbon chain, that is pentane; then we will find out the type and position of functional group, which is carbonyl group at position 3. So the name is 3-pentanone.

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